This is an original early-WWII Firestone manufactured M1 helmet liner. The exterior retains its original olive drab factory paint finish. It features non-painted steel A-washers and a khaki suspension, dating the liner's production from mid-1942 to mid-1943. The khaki suspension is strong and intact. It comes complete with its original Vogt Manufacturing Co. headband, neckband, and green flat-buckled leather liner strap. This liner would display quite nicely when paired with a mid-1942 fixed loop helmet shell.